Renewable energy surges to record levels around the world

New solar, wind and hydropower sources were added in 2015 at the fastest rate the world has yet seen, a study says.Investments in renewables during the year were more than double the amount spent on new coal and gas-fired power plants,For the first time, emerging economies spent more than the rich on renewable power and fuels.Over 8 million people are now working in renewable energy worldwide.